[FIXED] How to set context-param in spring-boot

Issue

In the classic web.xml type configuration you could configure context parameters like so

web.xml

...
<context-param>
  <param-name>p-name</param-name>
  <param-value>-value</param-value>
</context-param>
...

How is this achieved in spring-boot. I have a filter that requires parameters.

I'm using @EnableAutoConfiguration and have included <artifactId>spring-boot-starter-jetty</artifactId> in my pom.

Solution

You can set parameters using the server.servlet.context-parameters application property. For example:

server.servlet.context-parameters.p-name=p-value

In Spring Boot 1.x, which is no longer supported, this property was named server.context-parameters:

servlet.context-parameters=p-name=p-value

Alternatively, you can configure parameters programmatically by declaring a ServletContextInitializer bean:

@Bean
public ServletContextInitializer initializer() {
    return new ServletContextInitializer() {

        @Override
        public void onStartup(ServletContext servletContext) throws ServletException {
            servletContext.setInitParameter("p-name", "-value");
        }
    };
}

Answered By - Andy Wilkinson
Answer Checked By - Marilyn (JavaFixing Volunteer)